Carcass-treating method



Feb. 25, '1930.

K. M. RICHARDSON ET AL CARCASS TREATING METHOD Filed March 1928 is: 5TEP Z- 2ND STEP 32D STEP 4TH 5TEP Heat kreaimznt of Carcass as by scoldinq stzamiriq dc. to loosgn the hairseic.

Coat'mq qarcass with adhesive. as by brush spray'mq dc.

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Nor Esszm-mL To MAIN PURPOSE.

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22% 7;, QM @W fi l Patented Feb. 25, 1930 UNITED STATES PATENT. OFFICE mm M. mcnmnson, or KANSAS m nssreuous 'ro SWIFT a KANSAS CITY, KANSAS, A, CORPORATION OF ILLINOIS MISSOURI, ,AND DAVID J. HARDING, OF COMPANY, OF CHICAGO, ILLINOIS,

ensues-resume mn'rnon App1ication medium a,

then scraping or polishing usually su'ffices to'remove the greater part of the hair but it is sometimes found practically impossibleto Y remove all of these hairs by such methods and in consequence shaving or singeing certain parts of the carcass is sometimes resorted to. It is important to note, however, that any hair remaining on thevcarcass or any hair roots or stubs remaining after shaving results'in rating the corresponding cuts downward in market value, only clean hairless cuts commanding a high ratingand corresponding price. 1

The main objects of this invention are to,

provide an improved and simplified process or removing from food carcasses all of the hair or other dermal excrescences intheir entirety; to do this with absolute thoroughness and without producing any undesirable eifect on the carcass; to provide for practicing such a processby mechanical power means; to provide a method step in such a process which consists in beating oii from the carcass a hard adhesive coating material in which the excrescences and extraneous material are to some extent embedded to provide for thus removing such coatings consisting of any of the materials or compounds adapted for such use, as for example a mixture of resin, pitch. and parafline; to minimize all manual labor casses as far as possible; and to provide such a methodadapted for carrying out by unskilled workmen. V

An illustrative embodiment of this invention and certain modifications thereof are shown by the accompanying drawings in which: w 3 Figure 1' is a cartographic diagram setting forth the essential steps and indicating in connection" with such, treatment of car- I928. Serial No. 258,922.

certain preferred accessory features of the invention.

Fig. 2 is a conventional view illustrating how the carcass may be transferred or moved about from one operating section or zone to another, and also shows twomethods of applying an adhesive coating, one mechanical and the other manual, the latter sometimes being supplemental to the other.

Fig. 3 is a conventional view showing how the coating may be broken up and stripped ofi, together with the adhering hairs and similar excrescences by a manually supported power operated beater.

Fig. 4 is a view of the discharge end of a large wholly automatic power driven carcass receiving rotary drum and beater.

Fig. 5 is a side view of the device shown in- Fig.4.

Fig. 6 is an enlarged detail of one of the beater arms of Fig..

Referring now to Fig. 2, the carcass 1, represented in this instance by a hog, is carried by an overhead truck 2 traveling on the rail 3. A hard adhesive coating 4 is applied to the carcass by means of discharging spray 5 thereon from a nozzle 6. Such a nozzle is carried by a workman 7 who directs the s ray manually, the nozzle being. connected y a flexible pipe or hose 8 to a source of hot congealable liquid coating material maintained under pressure, but not here shown. Brief exposure of the coating to the atmosphere chills it sufficiently to harden, in which state it adheres tenaciously to the hair or bristles. Setting or hardening of the thermo-responsive material may be expedited if desired, as by a draft of air, water spray or by dipping the coated carcass in water, but this is not essential.

It is sometimes found desirable to supplement the work of the spray nozzle by manual application of additional coating material with a hand brush 9, as by an assistant workman who carries a pail 10 containing some of the hot coating material. It is to be understood that the coating as a whole may be applied entirely by hand, if desired in any instance, but on account of much greater speed and saving of. labor, thespraymethod 100 isbiiighly advantageous and'generallyprefer a e.

Fi theory of mechanical beating of the carcass for removal of thecoating and hairs, it being understood that a preferred embodiment of,

the beatin method is illustrated by- Figs. 4

and 5. Hbwever, the device in Fig. 3 may be used as an accessory for supplementing or finishing the work of the large drum and beater device of Fig. 4 in' case any parts of the coating and hairremain after the carcass has passed through the drum.

Referring more in detail to Fig. 3, the

' or bars 18 riveted to the ends of the straps.

This beater is driven at high speedby means of a flexible shaft 19- extending through the handle part 16 and connected to a source-ofv power, as for instance. an electric motor, not shown. Y v

Referring next to Figs. .4 and 5, the machine 20 as a whole comprises a frame 21' 3 having a receiving platform 22 ,a delivery platform 23 and a long rotary'drum 24 axled nearl .horizontall 'on. said frame but in cline downwards ightly from the receiving end to the delivery end. There is also journaled on said frame'a shaft 25 having a pulfrom any desired source of power. Said shaft is geared at 27 for driving said-drumv directly. Longitudinally disposed in said drum and somewhat eccentric relative thereto is a rotary beater shaft 28 carrying a longitudinally arranged series of co-rotary beaters 29.

left of the main axis of the drum 24.. Said rece1ve.the same. I I Each of the beaters- 29 comprises a hub 34 fixed on the shaft 28 and each hub is rovided with a plurality of rigid arms35 aving flexible straps 36 attached thereto and said straps having solid beater elements 37 attached to their outer ends, preferably consis'ting of short radial strips of iron havinglution s per minute, the'accessory gearing be-.

3 is included mainly to. illustrate the,

ley 26 on one end adapted to be belt driven 31, said shafts having corresponding pulleys or sprocket wheels 32 and 33 respectively to and the beater shaft 28at about 250 revolutions per minute, the diameter of the drum 24 being about -five and one-half feet, with avlengthof sixteen feet and a slope of two inches in its whole length. Furthermore, the drum and beater are driven in opposite direcf s ing adapted and arranged to drive the barrel or drum 24 at about 15 revolutions perminute tions, so that as the carcass is carried up somewhat on the ascending side of the drum and under the eccentrically positioned beater, the whipping and pulling action of the beater assists gravity in rolling the carcass over and over as it is gradually fed by gravity down the slight incline through the said drum. The beater elements 38 strike the carcase with suflicient violence to tear away all of the coating together with the hair and other extraneous matter. It is to be understood that our is not limited to the vuse of any specific coninvntion gealable liquid coating material or com-' pound but applies to any and all coatings 88 to 91'per cent of resin; or we may use a.

adapted-for the process claimed.- For inmixture of about 75 per cent of asphalt with about 25 per cent of resin. The latter mixture costs about four cents per pound.v We

may also use a mixture of about 30 per cent of pitch, 65 per cent of resin and 5 per cent of parafline.

Although certain specific embodiments of I apparatus and corresponding details of method comprised by our lmprovements have been selected to illustrate the in ention herein set forth, it is to be unders 00d I that some of the details ofthe constructions.

shown and of the operative steps maiyr be altered or omitted without departing. om

the spirit of this invention as defined by the i i consists in coating-the carcass with an adfollowing claims. y Referring to Fig. 4, 1t Wlll be seen that the beatershaft 28 is somewhat below and to theno hesive" and temperature-responsive congealable liquid, chilling the coating to cause it to" solidify and griptheexcrescences, and then beatin the coated surface of the. carcass,-

where y theindurated coating isremoved together with the excrescences embedded therein. 1

2. The method of treating an edible carvcass for. removal of dermal 'excrescences therefrom, which consists in applying theretd a coating of temperature-responsive material in hot and" fused condition, exposing the carcass to a relatively cold medium and thereby chilling the coating andso causing it to set,.and then beating the carcass to remove the indurated coating together with the dermal excrescences embedded therein.

ing to set, and then removing the indurated coating, together with the dermal excrescences, by beating the carcass.

4. The method of treating a carcass which I consists in spraying it with hotcongealable liquid of adhesive character, exposing the carcass to a cooling medium whereby a hard coating is formed, and then beating the carcass to remove the coating together with whatever dermal excrescences therein.

5. The methodof treating a-carcass which consists in spraying it with hot congealable liquid of adhesive character, exposing the carcass to a cooling medium whereby a hard coating is formed, and then submitting the carcass to the action of a mechanical beater whereby the indurated coating is torn to piceesand removed, together with all dermal excrescences embedded therein.

6. The method of removing dermal excrescences from edible carcasses which consists in applying heat to loosen the excrescences, then coating the carcass with a hot congealable liquid of adhesive character, then chilling the coating to'harden the same, and finally submitting the carcass to a rain of blows from light-weight, high-speed heaters whereby the coating is broken or shredded and removed together with the excrescences embedded therein.

Signed at Kansas City, Kansas, 23rd day of February 1928.

KENT M. RICHARDSON. DAVID J. HARDING.

are embedded 

